package scream.servlet.rol;

import java.io.IOException;
import java.util.Collection;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import scream.excepcion.DAOExcepcion;
import scream.modelo.Rol;
import scream.modelo.Usuario;
import scream.negocio.SeguridadNegocioRol;
/**
 * Servlet implementation class RolListadoServelet
 */
@WebServlet("/RolListadoServelet")
public class RolListadoServelet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public RolListadoServelet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request,response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		
		HttpSession session = request.getSession();
		Usuario oUsuario = (Usuario)session.getAttribute("USUARIO_ACTUAL");	
		if(oUsuario == null){
			request.getRequestDispatcher("error.jsp").forward(request, response);
			return;
		}
			
		SeguridadNegocioRol vivienda = new SeguridadNegocioRol ();	

		try {
			Collection<Rol> listaRol = vivienda.listarRol();
			
			// Guardar en el ambiente de request
			request.setAttribute("roles", listaRol);
			RequestDispatcher rd = request.getRequestDispatcher("usuarioNuevo.jsp");
			rd.forward(request, response);

		} catch (DAOExcepcion e) {
			session.setAttribute("ERROR_MSG", e.getMessage());
			RequestDispatcher rd = request.getRequestDispatcher("error.jsp");
			rd.forward(request, response);
		}		
	}
	}
